No, don't temp me with another option! I have searched here for multiple threads on 23 vs. 35. It seems the main complaint about 35 is that it has a different focus mechanism (don't remember the details) so it's AF is slower than 23, even with firmware update.

After the original 3 XF Lenses were released, the Fuji lens design team refined the mechanical aspects of every lens that has come later. Mechanical performance is completely different from optical performance; all the lenses perform, optically, very well.